Improvement in steam or air brakes



SAMUEL N. GooDALE.

Improvement in Steam Vor Air Brakes.

mvENT-on.

UNITED STATES PATENT OFFICE.

SAMUEL N. GOODALE, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN STEAM OR AIR BRAKES.

Specification forming part of Letters Patent No. 123,098, dated January30, 1872.

Be it known that I, SAMUEL N. GooDALE, of St. Louis, St. Louis county,State of Missouri, have invented a new and useful Improvement for thepurpose of Operating Steam or Air Oar-Brakes.

The object of this invention is to remove all particles of condensationfrom the pipes and steam or air-chests, as well as to remove the steamand air pressure from the pipes, pistons, or carwheels moreexpeditiously, reference being had to the accompanying drawing for afull description.

Figure l represents a side view. Fig. 2 represents a longitudinalsection, and Fig. 3 an end view.

A represents the outside of what I term a drop-valve, placed or screwedinto the steam or air cylinder under each car, and, when required, intothe pipes connecting with such cylinder; While B shows the coil sprin g,to hold the valve open when not in use; D being a fastening on the topof the valve to prevent the valve ilying up into the pipe or chest. Thetop O of such. valve, having a broad surface, yields more or lessreadily to the pressure, as may be desired, by increasing or decreasingthe size of the spring.

The valve A, B, O, and D, for the combined purpose of relieving pipesand cylinders of carbrakes, as well as to remove the pressure from theWheels more expeditiously, substantially as and for the purposeshereinbefore set forth.

SAMUEL N. GOODALE.

Witnesses:

SAML. N. GooDALE, Jr., DAVE) LEWIS.

